Cracking Instacart's Frontend Software Engineer Interview: Data Pivot Challenges and React Skills

Software Engineering
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Instacart | Frontend Software Engineer | Interview Experience

Interview Date: Not specified
Result: Not specified
Difficulty: Not specified

Interview Process

The interview was frontend-focused and consisted of onsite coding challenges. The questions were primarily sourced from previously shared materials.

Technical Questions

  1. Data Pivot Table

    • Calculate total sales (note that the sales column may change positions).
    • Print the total sales for different products (duplicate rows for the same product may exist), sort by product name, and include headers.
    • Implement a function to get the most profitable item by start date, with the output format: The most profitable by ${date} is ${item name}.

  2. Search Bar with Pagination (Frontend focused - React)

    • Create an input box that calls a mock API to fetch data as the user types, with results supporting pagination (the API already includes pagination).
    • After searching, the results should allow the user to call a mock API to add items to the cart, delete individual items, and clear the cart.

  3. Frontend System Design

    • Design a theme provider that allows merchants to modify their theme, focusing on logo and color changes without altering the layout. Discuss the non-functional requirements, including how changes can be immediately visible to users and the trade-offs involved.

Tips & Insights

  • Pay close attention to the preparation materials provided by the recruiter, as they contain important information relevant to the interview process.